Introducing our Budget Mailboxes Catalog!

Full of some of our most popular and favorite mailboxes. Some
of our customers prefer to have it mailed to them, some like to
download and look at it right away. You decide what works best for
you...Enjoy!

Understanding 4C Mailboxes by Overall Height

Required Height from the Floor

If your installation is for USPS delivery and contains any tenant compartments in the bottom row, the minimum height from the floor is 28 inches.

If your installation contains no tenant compartments in the bottom row, you have the option to install at a minimum of 15 inches from the floor to be compliant with ADA and USPS requirements.

As we mention in USPS Approved or Private Delivery?, any 4C mailbox on Budget Mailboxes listed as USPS approved already meets these specifications, so your only concern would be to ensure that your installation location is configured properly for the specific 4C you intend to purchase and install.

Numbering Your Tenant Doors

Rather than assigning mailbox ID plates that match apartment or house numbers, sequential or standard numbering may help you meet the accessibility regulations related to your project. Standard numbering may also provide greater security and privacy for residents who do not wish for their home or unit address to be displayed on a specific tenant box. Even so, custom numbering and custom engraving are each available as additional options if standard numbering will not suit your needs.

4C Quick Reference Guide

For more information regarding USPS regulations and our available 4C door height configurations, please see this detailed page.

4C Horizontal Mailboxes

The 4C Horizontal is the industry standard for recessed mounted centralized delivery. Unlike the CBU, the 4C unit is usually recessed in a wall, indoors or outdoors, or in a kiosk (typically outdoors).

However, you can purchase the 4C with a surface mount collar or free-standing kiosk if you do not intend to install the units into a wall. These can be purchased with or without parcel lockers for package delivery, and can be selected for either USPS or private delivery. Available in a variety of door configurations and architectural colors, the 4C mailbox is an ideal solution for apartment complexes and commercial buildings.

In our product description below, you will find information covering a variety of common 4C mailbox questions as well as detailed specs that you can apply to your next new construction or renovation project.

The Industry's Best Product Warranty

Salsbury Industries provides an unrivaled five-year warranty on its products, from the date of shipment when purchased from an Authorized Salsbury Dealer like Budget Mailboxes. Click here to view full details on the product warranty or call us at (866) 707-0008 if you still have questions.

Design and Other Specifications

Effective October 5, 2006, all new designs approved for New Construction and Major Renovations require U.S. Postal Service STD-4C compliant mailbox systems. The new USPS 4C Standard includes the following specifications:

How many tenant doors do you need?

This may be the most common question guiding a customer's search for the right 4C mailbox, as it should be. The options are diverse: you can purchase a single 4C mailbox for 1 tenant or configurations with 20 tenant boxes and 2 parcel lockers.

If you already know the number of tenant doors you need but aren't sure which configuration to choose, here are some questions you can answer to help guide you before purchasing:

What size tenant doors do you need? The 4C mailbox offers tenant boxes in three sizes: MB1 (standard), MB2, and MB3. The higher the number after the "MB", the taller the tenant box. So:

An MB2 slot is 6 ¾ in. High

An MB3 slot is 10 ¼ in. High

Do you need parcel lockers included with your mailboxes?

Note: the USPS requires one parcel locker for every ten (10) tenant boxes, which is why we sell multiple 4C configurations that already include the required number of parcel lockers.

If you purchase 4C mailboxes without parcel lockers, we recommend choosing recessed parcel lockers in the same height class so that the two units will match aesthetically (see more info on Height Classes).

USPS Approved or Private Delivery?

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In a nutshell, here are the key differences between a USPS approved and a private delivery 4C horizontal mailbox:

A USPS approved mailbox meets USPS regulations for height, width, installation location, ADA accessibility compliance, and compartment size. Luckily for you, we already designate the mailboxes that meet these criteria, so all you really need to know are:

The number of tenants that will need access to the mailbox

The type of installation: whether the units will be recessed into an existing wall, mounted to an existing wall via surface mounted enclosures, or free standing in a 4C mailbox kiosk

A mailbox for private delivery doesn't have to meet any of the USPS regulations since it will be serviced by an in-house mail department. This is most common with universities, dorms, or organizations that distribute mail in-house. If you purchase a commercial mailbox for private use, the appropriate lock will be installed and keys will be included with the unit.

If you want the gritty details on USPS specifications, we recommend you visit this article as it contains a thorough overview of height regulations, ADA compliance,* and how to choose mailboxes in the same height class (typically for architects or developers).

*Note: all 4C compliant mailboxes must meet USPS design and installation requirements to be USPS Approved. Accessibility regulations may vary locally and regionally, so we encourage you to always consult local building codes for the accessibility requirements related to your mailbox project. (See Installation and Accessibility References for additional details.)

Front Loading or Rear Loading?

Front Loading

Front-loading mailboxes include a Master Loading Door prepared for the USPS Arrow Lock, which provides easy access to all compartments by the US mail carrier. Note: the USPS provides and installs their arrow lock, so you will not find arrow locks included with your mailbox.

Front-loading units are usually more common, whereas rear loading units tend to be less common as they require the mail carrier to load and retrieve mail from a secure room located behind the recessed mailbox (more about rear loading below).

Rear Loading

If you haven't already guessed, the rear-loading mailbox is accessed from the back. These mailboxes include hinged and latching rear doors that are accessed by a secure mail room for USPS use. They do not have a front master loading door. Since there is no locking mechanism on the rear doors, a secure mail room behind mailboxes is required to keep mail secure.

If you still aren't sure whether you need a front or rear loading configuration, contact us and we will help you decide on the best option to fit your specific needs.

Customize Your Tenant Door ID Layout

Step 2 - After you place your order, we will email you the layout form for you to customize.

Step 3 - After you've completed and signed the form, email it back to us and we will finalize your order.

Important: To ensure a custom layout is processed correctly, we ask that you complete this form after completing your purchase. For your convenience, we will also email you a copy of the form after your order is placed (note: this only applies if you select Custom Layout from the dropdown options).

Customers purchasing a 4C Mailbox with Standard Numbering or Custom Numbering applied top-down from left to right do not need to fill out this form.

Door ID Options

Decals: All 4C commercial mailboxes come standard with silver adhesive decals 1.5 inches high by 1.75 inches wide. Black lettering can contain up to five characters per decal.

Engraving: Custom engraving utilizes the USPS Standard US Block font with up to 12 characters per line. This ¾ inch high engraving may be created with or without one of two color fill options (white or black).

No
e: 4C mailboxes selected with custom decals or engraving usually ship in three (3) weeks.

Installation Types and Mounting Options

Recessed

All 4C Horizontal Mailboxes are sold as recessed units, meaning that they will be installed into a wall. The installation requirements are usually set out in the development's architectural planning. We provide detailed technical docs for each 4C Door Height class as well for each individual 4C model within those classes. Check the Related Downloads tab for available specification documents or, if you can't find what you're looking for there, give us a call at (866) 707-0008.

Surface Mount Collar

(only for front loading mailboxes) If you do not intend to recess your 4C Mailboxes into a wall, you can mount them to the wall directly using a surface mount collar. The collar is installed to the wall, either indoors or outside, and the matching 4C mailbox is recessed into the collar instead of the wall itself. This is sometimes a more practical solution for developments where recessing into a wall is not possible or for limited wall-depth projects.

Free-Standing Depot

(only for front loading mailboxes) In addition to a surface mount collar, customers also have the option to purchase a free-standing mailbox depot. You do not have to mount these depots (or mail kiosks) to a wall, but can place them in a convenient location either inside or outside the building, provided the location meets local USPS requirements for delivery. You would then recess the 4C mailbox into the depot enclosure.

Color Options

Salsbury 4C Mailboxes are currently available in four (4) different color options. The colors are listed below along with their corresponding mailbox swatch. Need help finding the right color? Give us a call or open a chat with one of our reps and we can help guide you to the specific color you need.

Installation Requirements

Salsbury Industries USPS Approved 4C mailbox products are designed to adhere to STD-4C regulations. To ensure your project complies with USPS regulations for wall-mounted mailboxes, your mailbox center must be installed according to the following U.S. Postal Service guidelines:

Installation requirements specified in the U.S. Postal Service STD-4C regulation are outlined below:

At least one customer compartment shall be positioned less than 48 inches above the finished floor.

Meeting ADA Installation Requirements

Accessibility regulations may vary by the type of facility and by governing jurisdictions in your region. Therefore, always consult local building officials and codes for accessibility requirements that could affect your mailbox project.

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Regarding a Product's Shipping Estimate

The lead times listed on this product page represent the best-case scenario for shipping estimates. While we may show that a product "usually ships" within a given period, this period should not be confused with a delivery estimate. Rather, we expect the product to ship from the manufacturer's warehouse within this time-frame.

What does this mean for you? Once you place an order on our site, we begin processing the order with the manufacturer. The processing lead time we list on the product page is the most current estimate from the manufacturer regarding the product.

Below, we answer the top three FAQs our customers have regarding delivery estimates.

How long will it take to receive my commercial mailbox?

When you order a commercial or cluster mailbox, we process the order with the manufacturer within 1 business day. Once processed, the order usually ships in the time-frame listed on the product page. Since Cluster Mailboxes are large items, they ship via freight carriers. This means that the transit times for these will usually be 5 to 7 business days.

A few things to note about purchasing a cluster mailbox or similar large, commercial-grade product:

The freight carrier will call the number you list on the shipping address a day before delivery to schedule a delivery appointment with you.

The manufacturer ships using their chosen freight carrier depending on the products ordered and the delivery location.

The majority of online retailers who sell commercial mailboxes (CBUs, etc.) ship directly from the manufacturers, just as we do.

If you purchase a commercial mailbox from us and decide to cancel because a competitor lists a "faster" lead time on their site, you may be delaying the time it will take to receive your mailboxes. Why? Because you are placing a new order to be sent to the same manufacturer for processing.

What if I order multiple products from different brands?

If you ordered multiple products, it is possible that they are made by different manufacturers. If this is the case, your products will ship to you separately from each manufacturer.

For example, if you purchase a Mayne Post with a Whitehall Mailbox, your post will ship from Mayne's warehouse in about 3 business days, but your mailbox will ship separately from Whitehall in about 2 to 3 weeks if customized with address numbers.

How can I estimate my shipment's transit time?

Depending on the carrier and your location, transit times will vary. Delivery estimates are best projected using your carrier tracking number. Once your order ships, we'll send you a shipping confirmation email that includes your carrier (FedEx, UPS, YRC, etc.) and tracking number.

Note: If you place an order with us and do not receive an Order Confirmation email, check your spam inbox. If you still do not see an Order Confirmation email in your inbox, contact us right away at (866) 707-0008 . We will provide you with your Order Number and any other details you need.